int func(int n)
{
        int sum=0,i;
            for(i=0; i<n; i++) {
                        sum+=i;
                            }
                return sum;
}

int main(void)
{
        int i;
            long result = 0;
                for(i=1; i<=100; i++) {
                            result += i;
                                }
                    printf("result[1-100] = %ld \n", result );
                        printf("result[1-250] = %d \n", func(250) );
                         }